English (Dutch version follows): The increasing appreciation of urban greenery and (peri-)urban forests is a clear social trend. The great importance of urban forests has already been demonstrated on many occasions, with more and more attention being paid to the health-promoting effects of sufficient (accessible) urban green space. However, this actualisation study on the achievements of (peri-)urban forests in Flanders (Northern Belgium) shows that the developments in the field and the policy show an evolution which is diametrically opposed to this. The study clearly shows that the realisation of (peri-)urban forests has stagnated to a very large extent since a first study in 2011. With the exception of the city of Ghent as a unique, very positive outlier, no other city or municipality in the past 7 years has been able to develop more than 30 ha of urban (peripheral) forest. Only 8 smaller urban regions realised in those period more than 10 ha of forest extension, while 22 towns and cities have a limited area (0 - 10 ha) of forest expansion. In 32 of the 62 municipalities surveyed between 2011 and 2018 there was no forest expansion at all. In the past 7 years, therefore, less than 10% of the targeted (peri-)urban forest has been realised. The Parkbos Gent is a lonely white raven, because on its own this project accounts for almost half of all realisations in the period 2011-2018. In this report we examine the social importance of (peri)urban forests and their international and Flemish policy context in more detail. The methodology of this study is then explained, after which the results for each surveyed municipality are discussed. In order to give (peri-)urban forests the attention they deserve, and in order to achieve the much-needed expansion of forests in practice, a number of concrete recommendations were also formulated. For example, it is crucial that qualitative and quantitative objectives for the realisation of (peri-)urban forests are once again set in the respective policy visions, with a clear ...